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Old 04-18-2017, 01:35 PM   #1
RalphG
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Default Pinion Nut

The 52 Merc has had a loose pinion and leaking seal ever since I got it mobile so today I finally got around to looking at it. I found the nut holding the yoke onto the pinion shaft was not very tight. I must have tightened it quite a bit and now the shaft is noticeably tighter fitting. Before I could literally move the shaft up and down inside the seal area. No movement now. No doubt it still needs a seal. I guess it is time for a test drive.
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Old 04-18-2017, 01:48 PM   #2
scrapiron
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Default Re: Pinion Nut

It will surely need a seal,,,,drain it and see how much bearing comes out..
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Old 04-18-2017, 01:55 PM   #3
RalphG
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Default Re: Pinion Nut

Quote:
Originally Posted by scrapiron View Post
It will surely need a seal,,,,drain it and see how much bearing comes out..
I doubt there is any bearing damage yet. It runs fine but had a bit of a howl on deceleration.
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Old 04-18-2017, 02:37 PM   #4
Randy in ca
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Default Re: Pinion Nut

Should have a new crush sleeve before tightening pinion nut to the specified torque value which sets the preload on the bearings.
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Old 04-18-2017, 05:32 PM   #5
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Sorry, my mistake.
...Terry

Last edited by Overkill-F1; 04-18-2017 at 05:41 PM.
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